MKVToolNix is a set of tools to create, alter and inspect Matroska files under Linux, other Unices and Windows. They do for Matroska what the OGMtools do for the OGM format and then some. I usually use MKVToolNix to merge my .mkv movie with the subtitle for my TV and home theatre use. This tutorial is going to show you how to install MKVToolNix GUI on Elementary OS Luna.

How to install MKVToolNix GUI on Elementary OS Luna

To install, execute this command to import the GPG key to your system.